M. olivareo-liirta, (Sclnv.) 



402 



id oliracni-// ///</, Sclnv. Syn. N. Am. 1656. 

 ia oliracco-hii tu, Cke. Grev. XVII, p. 92. 



Perithecia scattered, rather large, witli the thick, cylindrical, per- 

 forated, persistent ostiola penetrating the epidermis: when this i.- 

 peehMl oil', the Large, flattened pcrithecia arc disclosed, clothed with an 

 olivaceous, hairy coat, and tinging the bark in which they are buried 

 with an olive-black color. 



dider the epidermis of the larger branches of Mor-n* ulba, Beth- 

 lehem, Pa. 



Sporidia (sec. Cke. Grev. I. c.) biseriate, lanceolate, 3-5-septate, 

 brown, 50-60 x 12-16 ft, constricted in the middle, at first ocellate- 

 nucleate. 



M. epileiica, B. & C. Grev. IA r , p. 156. 



Perithecia gregarious, covered by the epidermis, globose- depressed T 

 j mm. diam., dark villose, papillate, then with a large, round opening 

 above. Ascigerous nucleus black. Asci clavate, 130 x 30 ju, with a 

 -iiort, thick stipe, paraphysate, 8-spored. Sporidia biseriate, fusoid, 

 3-5-septate, straight or slightly curved, 65-70 x 18-20 //, slightly con- 

 stricted at the septa, surrounded by a gelatinous layer, the inner cells 

 dark brown, and sometimes with a large nucleus, the terminal cells 

 much smaller, paler and subapiculate. 



On decaying branches of Morus alba, Pennsylvania and New 

 Jersey. 



M. piilchra, Hark. Bull. Cal. Acad. Feb. 1884, p. 44. 



Perithecia scattered, covered, 1-1 J mm. diam., contents white. 

 Asci broadly clavate, 126 x 36 //, 8-spored. Sporidia fusiform-navic- 

 ular, of two irregular, unequal cones united by their bases, and sur- 

 rounded by a gelatinous stratum, at first uniseptate and hyaline, slow- 

 ly becoming brown and unequally 3-5-septate, 58-60 x 20-22 //. 



On dead branches of Umbellularia CaUfornica. California. 



y 



M. semitecta, (B. & C.) 



Sphczria semitecta, B. & C. Grev. IV, p. 147. 

 Massaria semitecta, Sacc. Syll. 2872, Cke. Syn. 4021. 



Perithecia half covered, subprominent, surrounded by the annular- 

 ruptured epidermis. Sporidia clavate, triseptate, slightly constricted, 

 fj. long, clothed at first with a thick, gelatinous coat. 

 On Platanus, Virginian Mountains (Berk in Grev.). 



